was a Japanese

economist An economist is a professional and practitioner in the social sciences, social science discipline of economics. The individual may also study, develop, and apply theories and concepts from economics and write about economic policy. Within this ...

known for his contributions to

mathematical economics Mathematical economics is the application of mathematical methods to represent theories and analyze problems in economics. Often, these applied methods are beyond simple geometry, and may include differential and integral calculus, difference an ...

. In particular, he is recognized as one of the first economists to utilize Lyapunov stability theory for analyzing the stability of economic equilibria. In 1970, he served as president of the

Japanese Economic Association The Japanese Economic Association (JEA) is the professional body of Japanese economists. The Japanese Economic Association is the largest, with more than 3,000 members, among academic economic associations in Japan. The Association is also one of ...

References

1909 births 1995 deaths Japanese economists Member of the Mont Pelerin Society {{Japan-economist-stub